The orders which we here intend to treat of are the following:—

[The Hymenoptera], including the Bees, Wasps, Ants, Saw Flies, Gall Flies, Ichneumon Flies, and their allies.

[The Neuroptera], including the Dragon Flies, Day Flies, Lacewing Flies, Stone Flies, Caddis Flies, and their allies.

[The Orthoptera], including the Grasshoppers, Locusts, Crickets, Cockroaches, Earwigs, and their allies.

[The Hemiptera], including the Bugs, Skaters, Lantern Flies, Frog Hoppers, Aphides, and their allies.

[The Diptera], including the Gnats, Midges, Crane Flies, Hawk Flies, Bee Flies, Breeze Flies, Bot Flies, and their allies.

Fig. 1.—Hoplistomerus Serripes.